Automatic cut-off for explosive-engines.



No; 813,316. PATENTE) PEB. zo, 190s. M. MNZEL. Aww/iwi@ www POREXPLQSIVE ENGNEs.

APPLICATION FILED JAN. 6, 1905A 2 SHEETS-SHEET l.

. Zin/@M Zay No. 813,316.A

A1.2.13SE1-1mm) im. 20, 1906. MNZEL.

'R EXPLOSWE EN@ FILED JAN. G, 1905.4

NES.

APPLIOA 2 SHEETS-SEEET 2.

offs, particularly MAX MNZEL, OF BRUNSVV 10K, GERMANY.

Specification of Letters Patent Fon expensive-susanne.

Patented Feb. eo, isos,

Application filed January 6,1905. Serial No. 239.918.

To ali/Z whom, t ntay concern:

Be it known that I, MAX MNZEL, engineer, a subject of the GermanEmperor, residing at Brunswick, Duchy of Brunswick, Empire of Germany,have invented certain nev.r and useful improvements in Automatic Cut-OHSfor Explosive-Engines, of which the following is a specification.

This invention relates to automatic cutfor use in connection withexplosive-motors or for other purposes wherein it is found applicable.

Primarily, the invention resides in providing an automatic cutoff in amanner as hereinafter referred to which is particularly adapted forclosing the suction-pipe of an explosive-engine when the latterdiscontinuos its operation, thereby preventing the escape of gas. l

The invention further aims to provide an automatic cut-ofi which shallbe simple in its construction, strong, durable, efficient in its use,and comparatively inexpensive to set up.

To this end 4the invention consists of the novel construction,combination, and arrangement of parts hereinafter more specificallydescribed.,v illustrated in the. accompanying drawings, which formo.part of this specification, and particularly pointed out in the claimshereunto appended. y

ln the drawings, wherein like reference characters denote correspondingparts throughout the several views, Figure l is a side elevation of a(portion. of an air-suction pipe, showing the a aptationof a cut-oit inaccordance with this invention. Fig. 2 is a sectional plan. Fig. 8 isaplan. Fig. 4 is a side elevation of amoditication; and Fig. 5 is asectional eievation'cf an explosive-motor, showing a cut-oit inaccordance with this invention arranged in operative relation withrespect to the motor.

Referring to the drawings hy reference characters, a denotes anair-conduit or suction-pipe through which air is supplied to form theexplosive charge or the gas mixture, and the said conduit d is closedwhen occasion requires hy the automatic cut-off now to he described.rihe automatic cut-oil' consists of a valve conduit d and carried hy astem b, which is journaled for rotation in and projects laterally fromeach side of said conduit a. Upon one of the projecting ends of the stemt is Vmounted -a coiled tension-"spring g, which has one of its ends, asat g?, to a diskh, se-

c, arranged within said the lever d in the position to which it hadcured to the outer end ofthe stern b, and has its other end, as at g3,fixed to the conduit a. The function of the spring ically close thevalve c when the same is released in a manner as hereinafter referredto. The springv g is inclosed in a sleeve g4, which is carried by thedisk h and disconnected from the conduit a.

' Upon the other projecting end of the stem b is loosely mounted a leverd, having its upper end enlarged and formed in a segmentshaped manner,as at 1", with the top edge rnl thereof formed with a recess o for apurpose to he hereinafter referred to. A second lever e is connectedwith the stem b in such a manner that the said lever c can movelongitudinally upon the stein b as well as rotate said stem b whennecessary. The lever` c is arranged in iront lof the lever d, and thesaid levers are clamped together upon the stem b so as to turn in unisonwhen necessary by means of a wheel f, which is shiftableupon the stemI), so as to press the said levers together and clamp them against anabutment p upon the stem b. Fixed to the conduit a is a support i and tothe top of which, as at 7c, is pivoted one end of a swinging lever Z.The other end of said lever lis attached to a holding-arm fm, which isadapted to engage in the recess o for preventing the lever d from beingshifted by the action of the spring g. The arm m is moved into and outof the recess through the action of the governor m2 'upon a lever-armm3, attached at one end to the arm m, Fig. 5.

The manner in which the cut-oi'f operates in connection with anexplosive-motor is as follows: The valve c is adjusted to workingposition by the lever d and is then retained in such position by hand orby an optional stopping has operated to such an extent that the governorm2 causes the arm m to move downwardly into the recess o, and therebyretain the lever c from movement. The wheel f is then released, thevalve c then vadjusted through the medium of the lever e, according tothe requirements. The wheel f is then adjusted so as to clamp the leversd c to the stein b, the arm m in the meanwhile retaining been moved whenadjusting the valve cy to working position, said arm m after the twolevers have been clamped to the stem b continuing to retain the lever din the position to which it. had been adjusted, and at the same g is toautomatlongitudinally device (not shown) until the motorf IIO .twolevers d e therewith and moving the are clamped together upon the stemb, the

j the arm mis moved out ofthe recess o. The

tors comprising the combination with. a suetime, owing to the fact thatthe two levers latter-is also prevented from movement until movement ofthe arm m out of the recess 0 is had when the motor is stopped, thestopping ofthe motor causing the governor m2 to rock the lever-arm m3,so that that end of the lever m3 which is connected with the arm m willbe elevated, consequently shifting the arm ,m out of the recess 0 andpermittingv the action of the spring g to turn the stem carrying thevalve c to closing position. A scale r2 is arranged oii thesegment-shaped portion r, so thatthe position to which the valve c is tobe or has been ad'usted can be ascertained.

A modified orm of eut-ofi is shown in Fig. 4, and in which a denotes theconduit, c the valve, and b the stein. s denotes a vertically-movablerod connected at its lower end through the medium of the link t to thestein b. The rod s carries a weight g and also a sliding block g5, towhich is ivotally connected, aszat g", a'lever d. he block g5 isadjusted through the medium of the screw Wheel e', mounted upon theupper end of the rod s. The lever g carries a trip-arm having a nose 0',which is adapted to abut against the lower end of the holding-arm m whenthe `said arm m is moved to a position in the path of the nose o throughthe action of the gov? ernor of the motor. The arm m is connected withthe governor in. the same manner as the arm m.l The 'function of theweight g is to lower the rod s when the nose of the trip-arm r isreleased, owing to the action of the governor upon the arm m. The weightg is used instead of the spring g heretofore referred to. The adjustmentof the valve c is caused through the operation of the wheel e.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is- I 1. An automatic cut-off forexplosive-mtion-pipe, of a valve mounted therein, means for shifting thevalve to openv position, means for retaining the valve iii. an openposition, l

means for automatically returning the valve to closure position whenreleased, and means foradjusting the'valve after the saine has beenshifted to open position.

2. An automatic eut-off for eXplosive-motors, comprising a valve, meansfor shifting the valve to open position, meansfor retain^ for openingthe valve, means for retaining the valve in an open position during theoperation of the motor, means operated by the governor of the motor formoving said retaining means to and from operative position during ltheoperation of the motor, and for moving said. retaining means to andholding it in inoperative position when the .motor diseon` tinues itsoperation, means 'for automatically returning the valve to closureposition when said retaining means is moved to inoperative position, andmeans for adjusting the valve after the 'same has been moved to openposition.

4. An automatic cut-ofi' 'for ex losivelengines comprising a valve,means or opening the valve, means for retaining the valve in an openposition during the operation of the mtor, means operated by thegovernor of the motor for moving said retaining means to and fromoperative position when thernotor is started and for moving saidretaining means to and holding it in inoperative position when the motoris stopped, and means for automatically returning the valve to closureposition when released.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

MAX MUNZEL. Witnesses:

JULiUs SEGKEL, WILHELM Ziciiitiin.

